Suitable for use as an antigen in immunological protocols. Purified lyophilized powder isolated from pooled normal sera by an exclusive fractionation process and further processed by ion exchange or gel filtration chromatography. Used for in vitro diagnostics as a blocking agent, reference standard, antigen or coating protein and in biological systems for immunogen preparation. Country of Origin: United States Purity (SDS PAGE): 90% Purification Method: Purified by ion exchange or gel filtration chromatography pH: 7.0 0.2 after reconstitution Form: Supplied as a stable, lyophilized powder Sodium: Essentially salt free
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